code: def __init__(self, source=None, axes=set()):
      self.source = source
      self.axes = axes
      self._cached_key = None
  
file_path: hail/hail/python/hail/expr/expressions/indices.py
imports: from hail.typecheck import typecheck_method, anytype, setof
  import hail
  from typing import List
label_desc: Use image node_id 1 to create a new Indices object from inherited base classes: object with example: obj = Indices(source, axes)